FL18399 – National Gypsum Company a dba of National Gypsum Services Company
Florida product approval FL18399-R3 for Panel Wall – EIFS, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL18399-R3
- Manufacturer
- National Gypsum Company a dba of National Gypsum Services Company
- Code version
- 2023 Florida Building Code
- Status in our data
- Approved
- Products
- 1
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL18399-R3
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL18399.1 | PermaBase Cement Board | Exterior backer board for use with tile, marble stone, thin brick, Portland cement stucco, synthetic stucco, and manufactured stones. | +34/-34 | N/A | No | Yes |
Fill a spec sheet with FL18399
On the contractor form, go to the Panel Wall – EIFS row and type 18399 in the Florida Product Approval # box to fill the row. Walton County users can print a PDF that follows the county’s sheet; see the Walton County Product Approval Specification Sheet guide.